Post on 02-May-2019
Chapter 4Normal Curve and Standard Scores
Practice with the Normal Curve
The Normal CurveUsing the z-Table
100%
The Normal Curve
50
50%
50th percentile
0 1 2-2 -1s (standard deviation)
0 1 2-2 -1z-score
The Normal Curve
0 1 2-2 -1
34 34 13.5 2.513.52.5
50%
16%
2.5%
s (standard deviation)
0 1 2-2 -1z-score
The Normal Curve
34 34 13.5 2.513.52.5
84%
97.5%
0 1 2-2 -1s (standard deviation)
0 1 2-2 -1z-score
The Normal Curve
50
The Normal Curve
34 34 13.5 2.513.52.5
84%
97.5%
16%
0 1 2-2 -1s (standard deviation)
0 1 2-2 -1z-score
The Normal Curve
34 34 13.5 2.513.52.5
0 1 2-2 -1s (standard deviation)
0 1 2-2 -1z-score
Mean + 1 s = 68%
The Normal Curve
34 34 13.5 2.513.52.5
Mean + 2 s = 95%
0 1 2-2 -1s (standard deviation)
0 1 2-2 -1z-score
The Normal Curve
The Normal Curve
34 34 13.5 2.513.52.5
0 1 2-2 -1s (standard deviation)
0 1 2-2 -1z-score
34 34 13.5 2.513.52.5
0 1 2-2 -1s (standard deviation)
0 1 2-2 -1z-score
The Normal Curve